PX4 Sync / Q&A: Jan 08, 2025

PX4 Sync / Q&A: Jan 8, 2025
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Bug report / Q&A

1- Not a specific question but I need general advice on placing a Taoglas GPS (GPS uBlox M10 for Starling, Sentinel, m500 and Seeker | ModalAI, Inc.) to get good compass agreement with the gyro. I’m seeing up to 0.2 radian innovations when I move the drone in circles, but on the modalai starling airframe I only get 0.1 radian innovations. So there is something about my airframe and placement of the GPS module that can’t seem to be calibrated out, any ideas?

2- complier selection strategy in CI:
@Alexander Lerach: gcc 13 saves noteiceable amount of flash compared to gcc 9
@dagar the best solution might be to make CI build with gcc updated version to save flash and have it different from the local setup scripts.

3- @dirksavage88 is it possible to use ARK Flow on the side to fuse velocity estimates instead of downward looking? The aim is to do position estimate in an enclosed env like a tunnel.
@bresch using it looking upward might be a better solution. Besides, maybe considering using a SLAM solution for navigation?

PRs needing review

If anyone is interested to test this?

Not a specific question but I need general advice on placing a Taoglas GPS (GPS uBlox M10 for Starling, Sentinel, m500 and Seeker | ModalAI, Inc.) to get good compass agreement with the gyro. I’m seeing up to 0.2 radian innovations when I move the drone in circles, but on the modalai starling airframe I only get 0.1 radian innovations. So there is something about my airframe and placement of the GPS module that can’t seem to be calibrated out, any ideas?

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